This is an OpenPGP/MIME signed message (RFC 4880 and 3156)--===============6423399928460911067==Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="mFo6dY4mNO2R9Pl1vHZo1RBZmMPBayxhV"

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 17.10

Summary:

USN-3579-1 caused a regression in LibreOffice.

Software Description:- libreoffice: Office productivity suite

Details:

USN-3579-1 fixed a vulnerability in LibreOffice. After upgrading, it wasno longer possible for LibreOffice to open documents from certainlocations outside of the user's home directory. This update fixes theproblem.

We apologize for the inconvenience.

Original advisory details:

It was discovered that =WEBSERVICE calls in a document could be used to read arbitrary files. If a user were tricked in to opening a specially crafted document, a remote attacker could exploit this to obtain sensitive information. (CVE-2018-6871)

Update instructions:

The problem can be corrected by updating your system to the followingpackage versions:

Ubuntu 17.10: libreoffice-common 1:5.4.5-0ubuntu0.17.10.4

After a standard system update you need to restart LibreOffice to makeall the necessary changes.